Does “clinically proven” settle the question?
Sellers often call a medicine “clinically proven,” meaning it was tested in studies with people. A trial, meaning one of those studies, can answer one narrow question about a studied group. It cannot prove that every product called semaglutide is the same, or predict one person’s result.
The strongest reading starts with what was studied, what it was compared with, and who funded the work.
A positive study means the medicine works the same way for everyone.
Trials report averages from defined groups under study conditions. They describe what happened in that study, not a guaranteed personal result.
Read the claim at the right level
The label here means the official prescribing information the FDA approves for each brand, which anyone can read free online. It tells you what the medicine is approved for. A trial tells you what happened in a study. A state license search, a public website where anyone can look up a doctor or pharmacy, tells you whether they hold a license.
What did the main weight trial find?
In the STEP 1 trial, 1,961 adults with obesity, or overweight plus a related health condition, were studied without diabetes. At week 68, average weight change was a 14.9% loss with semaglutide and a 2.4% loss with a dummy injection.
The study included regular visits and lifestyle counseling, was funded by the medicine’s manufacturer, and reported group averages rather than a promise for each participant.
What happened after treatment stopped?
In a later part of the same study, called the STEP 1 extension, 327 participants were followed for about a year after treatment ended. By week 120, the group had regained about two-thirds of the weight previously lost.
What can the label answer?
The current FDA-approved label is the best place to confirm approved uses, health histories that rule the drug out, common side effects, serious warnings, and the follow-up the manufacturer must describe.
What can a sales page prove?
It can prove what the page says. It cannot prove that a compounded product, which a pharmacy or doctor prepares to order, is FDA-approved. It also cannot prove that the person prescribing is licensed or that the pharmacy named in small print made the medicine.
Read the primary record
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FDA label
Wegovy prescribing information
The official prescribing information, approved by the FDA, for what the brand treats and what to watch for.
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Journal record
STEP 1 trial
The study behind the often-repeated average weight-loss figure.
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Journal record
STEP 1 extension
Reports what happened during the year after treatment was withdrawn.
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FDA records
FDA drug shortage data
A current-status source that answers a different question from local stock at one pharmacy.